Improvement in wood-sawing- machines



@atri-it Qtiijiw.

ISAAC KELLER, or RAN'DoLPHQoHIo.

Letters Patent No. 91,544, dated June 22, 1869.

IMPROVEMENT IN WVOOD-SAWING- MACHINES.

The Schedule referred to in these Letters Patent and making part 0f thelame.

' To all lwhofriJ it 'may concern i Be it known that I, IsAAc KELLER, of Randolph,

in the county of Portage, and State of Ohio, have invented new fand useful Improvements in sawing-Machines; andl do hereby declare lthat the following is a full, clear, and exact description of my invention,

Mreference being had to the accompanying drawings,

forming a part of this specification, and to the letters of reference marked thereon, of which drawings- Figure 1 is a side view of my improved sawingmachine, J

' Figure-@ais a plan of the` saine.

Figure 3 is a detail section, showing the arrangement of the shaft, sliding collar, and guide-collar.

. Figure 4 is a section made by plane l 2 of plan.

Figure 5 is avdetail view of mechanism for raising and lowering the saw.

Figure 6 is a detail view of lrotary-saw-bar guides and post for supporting the reverse-lever.

Figure 7 is a sectional viewJ of a rotary-saw-bar guide.

My invention relates to that class of sawing-machines known as crosscut-sawing machines, and consistsin the peculiar mechanism for working logs backward and forward, without interfering with the operation of the balance of the machinery, whereby I obtain a more perfect mechanical control of the log, and amrbetter able -to bring it into exactly the position required; also in the peculiar arrangement of the sawbar, slides, guides, and connecting-rod, or pitman, whereby I obtain an easy movement of the saw, both in sawing and in raising the saw after the 10g has been 11 `sawed, and avoid any unnecessary friction or weight iu any of the parts;and, lastly, in the peculiar arrangement of levers for holding the log while being sawed, wherebyI obtain a simple device which is sure p in its operation, easy to adjust Lto any size of log, and

which is readilydlisengaged when the log is to be moved.

-To enable others skilled in the art to make and use my inventionLI will proceed to describe its construction and operation.

The principal frame of the machine is shown at A, and is made oi' wood or any suitable material, in general form, as shown.

The main shaft B isV arranged in boxes on the frame A, as shown, and receives the power, through the universal joint I), from the driving-shaft C, which is driven by horse-power or in anyother suitable manner.

The shaft H is hung in boxes on the frame A, directly above the shaft B, and carries the ily-wheel l, which has a crank-pimJ, to which the connecting-rod i L is attached.

The gear-wheel E is hung on the shaft B, and is 'free to turn on said shaft.

l into the wheel E.'

A sliding collar, F,- is arranged on the shaft B, and

suitableA teeth, so as to clutch and revolve together when brought np to each other. f

It is readily seen, that by moving the end of the lever Q, which is pivoted to the frame A by ,a pin, a, and rests over the arm of post c, the fly-wheel I may be thrown in or out of gear with the driving-shaft B by the action-of the collar F, as shown.

The long frame A is attached to the frame A, and to the carriage-way A2 A, as shown, and connects them together.

The post fu is inserted in the frame A, and on this post are arranged the rotary guides q q, as shown,

,which guide and support the slides Y Y, as shown in figs. 1 and 2.

The saw-bar Z is secured between the ends of the slides Y Y, and passes forward through the rest lr, and has the saw c at itsfront end. The connecting-rod L is pivoted between the slides Y Y, and connected to the crank-pin J, as shown, from which it is easily seen that the rotation of the fly-wheel I causes a reciprocating movement of the saw c.

The saw-bar rest r works up and down in the guideposts s s, which are inserted in the frame A, and is operated bythe lever o, arranged as shown, to which it is attached by the rod n.

The toothed iron, p, is arranged at the end of the lever o, and serves to support said lever in any desired position by hooking over a pin at the top of the guidepost s, as shown.

A roller, fm, is inserted in the upper part of the sawbar rest r, as shown, and serves, by rolling on the upper face of the saw-bar, which, when in operation, is supported by the rotary guides 'Q q, and by the saw c, working on the log, to carry the weight of the rest r, rod fn., iron, p, and end of lever 0, without causing much friction on the saw-bar Z.

A pin, w, is inserted in the guide-post s, which prevents the saw from falling, and being broken, when the cut through the log is made. The front end of the log which is to be sawed rests on the feed-roller X, and the rear end is supported by a carriage, el, which runs on the carnage-way A2 A, and which is seen, in side view, at d.

The feed-roller X is connected, by the universal joint W, to the rod V, which is connected, by a universal joint, U, to the gear-wheel T, which is hung on a suitable axis attached to the frame A.

This gear-wheel T meshes into the gear-wheel S,

"lhe collar F andrgear-wheel E are arranged with Y which is fixed on the shaft R, which has the bevelgear wheel M on the opposite end, and is arranged in boxes on the frame A, as shown.

The bevel-gear wheel M meshes into the bevel-gear wheels O O, which are hung on the shalt B, aud are free to turn thereon.

The sliding collar N, which is operated by lever P, is made and arranged in a similar manner to the collar F, shown in fig. 3, and has teeth at both ends, which couple with corresponding teeth on the wheels O O when the collar N It is easily seen, that by means of' the lever P, the collar N may be brought up to either of the wheels O O, and that in this manner the log may be moved forward or back at pleasure.

A lever, f, is pivoted, at y, to a bar which connects the frame A and post v, as shown, and extends down over the log, and has a point, or brad, g, which is so situated as to be forced into the log when any pressure is lexerted on it.

A lever, k, is attached, at one end, to the side of the carriage-way A, and has arranged, in it, the iron, l, which has holes therein, and which passes through a hole in the lever f, and is secured at any desired point in said lever by a pin passing through the lever and one of the holes in the iron, l.

A ratchet, c', is attached to the lever j; and a catch, z, is attached to the lever k.

It is easily seen, that when the log is brought to the proper place, and the iron, l, secured in the proper position, by pressing down the lever k, the brad g will be forced into the log, and then, when the catch z on the lever k is fastened in the ratchet t', the log will he firmly held on the feed-roller and carriage while being sawed. When th'e log is to be moved, the catch z on the lever l: is disengaged from the ratchet d, and the is brought up to said wheels.

lever k is then raised, which pulls the brad g out of the log, and leaves the ,log free to move.

I am aware that a combination of tixed and loose gear-wheels, rods, sliding clutch-collar, spring, and lever, has been before shown in a sawing-machine, in which the spring acts to hold the clutclvcollar in an intermediate position between the loose gear-wheels the whole combination serving to produce a backward and forward movement of the log, and I, therefore, lay no claim to my combination of par/rs for effecting this movement of the log when a spring is used in combination with the clutch-collar, as described; but

What I do claim as my invention, and desire to secure by Letters Patent, is-

1. The combination of thc shaft B, loose bevel-gear wheels O 0, sliding clutch-collar N, bevel-gaar wheel M, shaft R, gear S T, universal joints U and W, rod V, and feed-roller X, the several parts being arranged as and for the purpose herein specified.

2. The arrangement of the connecting-rod L, slides Y Y, lunited, by a heck, at their centres, as shown,) saw-bar Z, oscillating guides q g, and post lv, when the several parts are constructed, arranged, and operated in the manner and for the purpose specified.

3. The arrangement of the lever f of the third order, provided with brad g and ratchet i, the connecting and adjusting-iron l, the working-lever k, with catch z and the carrage-way A, when the several parts are constructed and operated in the manner and for the purpose set forth.

As evidence that I claim the foregoing, I have hereunto set my hand, in the presence of two witnesses, this 18th day of February, 1868.

Witnesses: ISAAC KELLER.

J oHN F. KELLER, MARION HUFFMAN. 

